We look at the division of 80914987 by 320 
We want to divide 80914987 by 320.

Moving on to step 1:
When dividing 8 by 320, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 320

On to step 2:
320 goes into 80 0 times with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Include the next digit (9) from the dividend after 80, then repeat: 809 / 320

On to step 3:
320 can be fit into 809 2 times, resulting in a remainder of 169.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 640 from 809 and we're left with 169.
Bring next digit (1) of the dividend behind the 169 and repeat the process: 1691 / 320

Moving on to step 4:
When dividing 1691 by 320, we get 5 with a remainder of 91.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
The remainder is 91 after subtracting 1600 from 1691.
Fetch the next digit (4) from the dividend, attach it to 91 and continue: 914 / 320

Advancing to step 5:
914 divided by 320 is 2 with a remainder of 274.
The number 2 becomes the next digit in our result. 
Result so far: 252.0
Deduct 640 from 914 and we're left with 274.
Fetch the next digit (9) from the dividend, attach it to 274 and continue: 2749 / 320

On to step 6:
If we divide 2749 by 320, we get 8 and a remainder of 189.
The next digit of our result is 8. 
Result so far: 2528.0
Subtracting 2560 from 2749 leaves us with 189.
Grab the next digit (8) from the dividend, add it to 189, then carry on: 1898 / 320

On to step 7:
The number 320 fits into 1898 5 times, leaving a remainder of 298.
Put 5 as the next digit of the answer. 
Result so far: 25285.0
Subtract 1600 from 1898 to get 298.
Append the next digit (7) from the dividend to 298 and continue with: 2987 / 320

Step 8:
If we divide 2987 by 320, we get 9 and a remainder of 107.
The next digit of our result is 9. 
Result so far: 252859.0
If we subtract 2880 from 2987, we get 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Moving on to step 9:
The number 320 fits into 1070 3 times, leaving a remainder of 110.
The number 3 becomes the next digit in our result. 
Result so far: 252859.3
Subtract 960 from 1070 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 10:
320 goes into 1100 3 times with a remainder of 140.
Put 3 as the next digit of the answer. 
Result so far: 252859.33
The remainder is 140 after subtracting 960 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 252859.33 with a remaining 0.14.